Individuals link together to form chains which can stretch for fifteen meters. 这些一个个单体组成的链条可长达15米
They can send sound signals to one another, above the roar of the ocean 他们可以通过拍打海面 制造超越海洋轰鸣的的声音
but there's nothing to eat here for his mother. 但在这里他的母亲无法吃到任何东西
She must leave now, while she still has enough energy to guide and protect her calf, on the long voyage ahead. 她现在必须离开 趁她还有足够的能量 在漫漫征途之中来指导和保护她的幼子
He's almost doubled in size and his days in his tropical nursery are coming to an end. 它的身材也大了一倍 在热带托儿所的日子也到头了
It has been a warm and safe place in which to grow up 在这个地方长大温暖而安全
Neither seem likely to produce enough nourishment to support bird life on this scale. 而且看上去也不能提供给鸬鹚足够的食物
The only source of trouble is likely to be the neighbors 麻烦的唯一来源可能就是邻居了